Marine collagen has become increasingly popular over the last few years, with a growing body of scientific evidence supporting its beauty, joint and bone health benefits. But where do these collagen peptides come from, and how are they made?
Marine peptides are collagen proteins that are extracted from the skin and bones of fish like cod, red snapper, salmon, mackerel, and sardines. The peptides are hydrolyzed to reduce their size, which makes them more easily digested by the human body. This process also decreases the fishy taste and odor. The peptides are then blended with other ingredients, such as vitamin C, hyaluronic acid, and more, to create products that moisturize skin, improve elasticity, strengthen hair and nails, and support healthy joints and bones.
Studies show that marine peptides are effective in increasing the synthesis of osteoblasts (cells that form and maintain bone) and enhancing bone mineral deposition. They also help to decrease joint pain and improve arthritic symptoms by stimulating cartilage tissue to produce more collagen. 
Collagen is also an antioxidant, meaning it helps to neutralize free radicals in the body, which can damage cells and contribute to diseases such as cancer and atherosclerosis. In addition, studies indicate that marine collagen peptides are effective in improving skin elasticity and reducing wrinkles.